MOSELEY MAY FACE SHOULDER SURGERY

Right-hander Joe Wieland will be promoted from Triple-A Tucson to make Saturday night’s start against the Dodgers in Los Angeles while Dustin Moseley contemplates his future.

Officially, Moseley was placed on the 15-day disabled list Tuesday with a right shoulder strain.

But the Padres now acknowledge that Moseley is a candidate both for shoulder surgery and the 60-day disabled list.

“Dustin is just getting his emotions in order to make the right decision as it relates to his career,” Padres manager Bud Black said Wednesday afternoon.

“He wants to be informed about the best course of action. There is no urgency to make a decision right now. Surgery is a possibility.

“I do know that there is damage to the rotator cuff and changes to the labrum. The MRI showed more than minimal damage.” The damage to the labrum is said to be beyond fraying.

Moseley on Wednesday said he needed a few more days before making any decisions because one alternative at the moment is rehabbing the injury for up to two months to see if that corrects the problem.

But if rehabbing the injury fails and surgery is required, a two-month delay could jeopardize Moseley being ready for the start of the 2013 season.

Black also said that although Tim Stauffer has played catch the past two days, his return from the disabled list is at least three weeks away — which means the Padres have to plug holes in two-fifths of their rotation.

Anthony Bass will start tonight’s finale of the season-opening homestand while Wieland will join the Padres in Los Angeles for Saturday’s start. Another roster move will have to be made to activate Wieland.

Wieland, who turned 22 in January, and left-hander Robbie Erlin were the two pitchers the Padres acquired from Texas last July 31 in the trading deadline deal that sent setup reliever Mike Adams to the Rangers.

A 6-foot-3, 195-pound right-hander, Wieland impressed the Padres this spring before being optioned to Triple-A Tucson just before the Padres departed Arizona.

“I like the arm, I like the delivery,” Black said of Wieland. “He is a young, well-rounded player. I like the composure and the repeatable delivery. He has a nice four-pitch mix. He also has poise on the mound, baseball aptitude.”

Wieland advanced from Single-A to Double-A last season and was 13-4 with a 1.97 ERA over 155 2/3 innings, finishing the season with the Padres’ Texas League championship team in San Antonio (3-1, 2.77 ERA in four starts).

Prior to being the Rangers’ fourth-round draft pick in 2008, Wieland was the Nevada State Player of the Year, posting a 2.04 ERA while hitting .556 with 12 homers for Bishop Monogue High in Reno.

Bass promoted

Among the first Padres to congratulate Bass on getting tonight’s start against the Diamondbacks was Moseley.

“It’s your turn, run with it,” said Moseley.

Among the fans in attendance at Petco Park tonight will be Ed and Linda Bass of Trenton, Mich. They have been visiting their son for a week and are scheduled to return home Friday morning.

The only other time they saw their son start a major league game was last June 13 when Anthony was promoted from Double-A San Antonio to make a spot start in Colorado, which he won.

“I’ve learned a lot since then,” said Bass. “I’ve learned a lot about game planning and saving some stuff for later.”

Although Bass has worked two, two-inning stints out of the bullpen in the Padres’ first five games, Black thinks he is capable of throwing 70-90 pitches tonight.

“He’s much more of a pitcher now than when we first saw him,” Black said of Bass. “The learning curve is steep. He’s much better at changing speeds and locating his fastball. And last year when guys got on against him, he had a little trouble disrupting their base stealing. He’s made major strides.”

Notable

Stauffer said “it feels like the inflammation in my elbow is down quite a bit.”

• With left-hander Joe Saunders starting for Arizona on Wednesday, Black opted to give the right-handed-hitting Kyle Blanks his first start at first over the left-handed Yonder Alonso.

• Edinson Volquez said the pieces flying off the bat of Miguel Montero was the reason he was slow in covering first in Arizona’s two-run first Tuesday night. “I froze for a second and threw my hands up,” he said. “Usually I break a little slow, anyways, but I get there.”